1 to 25 of 41 Ruby on Rails Jobs in London

RUBY ON RAILS DEVELOPER 3-6 months £400-£500 PER DAY REMOTE (UK-BASED) We're partnering with an innovative technology firm on a high-impact contract role for a Senior Ruby on Rails Engineer. This project focuses on building automation tools that help streamline and modernise regulatory processes in the US … affecting how compliance risk is managed at scale. THE ROLE You'll be working within a product team responsible for a critical engine that runs large-scale compliance checks on dynamic datasets. The system ingests user data and performs complex rule evaluations, helping users get real-time visibility into compliance outcomes. Your role will be hands-on, focused … on back-end development using Ruby on Rails, with opportunities to work across the stack. Key responsibilities: Writing scalable, production-ready Ruby code within a mature codebase Designing and optimising relational data models and SQL queries for performance Building background jobs and distributed systems to handle high data volumes Translating fuzzy business logic into clearly More ❯

We are hiring a Software Engineer to join our Researcher Acquisition squad. This is a cross-functional squad, focused on our community of world class health researchers. Working closely with the OFH access team, we provide Researchers with various tools, content and support to join the OFH mission and run studies of good quality in our trusted research environment. … We're looking for candidate with a good background in Ruby on Rails but has an open mind to working on other technologies. Our core tech-stack includes Ruby on Rails, PostgresSQL , Terraform (IaC), running in Azure ( Kubernetes and Azure AppService ). There is also some overlap with our squads that mainly use … good health for longer. To succeed in this role you will already have some of the following skills: Technical skills Knowledge and experience of building cloud-hosted applications, using Ruby on Rails, in a start up-, public service-, or charitable setting. Additional experience with Node.js and Typescript and Python would be a nice to have. Prior experience More ❯

Full Stack Support Engineer (Ruby on Rails, TypeScript/JS, React, Postgres, Linux) Fully Remote (European time zones only) | Full-Time | Up To £80k/$100k per year DOE About Carebit Carebit is a young, design-led healthcare technology company helping over 1500 private Doctors across the UK run their practices more effectively and efficiently with our … this is not mandatory as we know some like in-person working and some prefer fully remote. About You We’re looking for a Senior Support Engineer who thrives on solving real customer problems through hands-on technical work. You’ll sit at the intersection of our support, engineering, and data migration teams – a true technical generalist who … great fit for a strong Developer who wants to take full ownership of debugging, fixing, and enhancing real-world product issues that impact Doctors and patients. You’ll Work On: Investigating and resolving bugs or issues raised by our team of Customer Support Specialists. Making small-to-medium feature tweaks (e.g. modifying exports, adjusting logic). Writing Ruby More ❯

Full Stack Support Engineer (Ruby on Rails, TypeScript/JS, React, Postgres, Linux) Fully Remote (European time zones only) | Full-Time | Up To £80k/$100k per year DOE About Our Client Our client is a young, design-led healthcare technology company helping over 1500 private Doctors across the UK run their practices more effectively and efficiently … is not mandatory as they know some like in-person working and some prefer fully remote. About You Our client is looking for a Senior Support Engineer who thrives on solving real customer problems through hands-on technical work. You’ll sit at the intersection of their support, engineering, and data migration teams – a true technical generalist who … great fit for a strong Developer who wants to take full ownership of debugging, fixing, and enhancing real-world product issues that impact Doctors and patients. You’ll Work On: Investigating and resolving bugs or issues raised by our client’s team of Customer Support Specialists. Making small-to-medium feature tweaks (e.g. modifying exports, adjusting logic). Writing More ❯

executive. GT's mission is to connect the world's best talent with product careers offered by high-growth companies in the UK, USA, Canada, Germany, and the Netherlands. On behalf of Quorso , GT is looking for a Full-Stack Engineer interested in building different data transformation pipelines as well as participating in growing the functionality of the core … users to perform more operations directly within the system. Responsibilities: Participating in business problem-solving by shaping up necessary user flows Contributing to technical designs as part of working on the scope Providing feedback during visual design review sessions Working on detailed technical implementation planning Building scoped functionality end to end, both backend and SPA frontend using Ruby on Rails, React, and Redux frameworks (50/50 backend to frontend) Essential knowledge, skills & experience: Experience in proactive business problem solving, scope, and detailed technical implementation planning, providing feedback for visual designs Experience working as a full stack engineer using Ruby on Rails on the backend and React/Redux on More ❯

The role As a Full stack engineer you will focus on bringing new functionality to the Quorso platform by: Participating in business problems solving by shaping up necessary user flows Contributing to technical designs as part of working on the scope Providing feedback during visual design review sessions Working on detailed technical implementation planning Building scoped functionality … end to end, both backend and SPA frontend using Ruby on Rails, React and Redux frameworks About us Quorso is one of Retail's most exciting SaaS startups. Our Agile Stores technology simplifies retailers' data into daily Next Best Actions ("Missions") for every store, guaranteed to engage teams and drive sales. We're an Enterprise platform, targeting … Requirements Experience in proactive business problem solving, scope and detailed technicalimplementation planning, providing feedback for visual designs Experience ofworking as afull stack engineer for at least 4 years using Ruby on Rails on the backend andReact/Redux on the frontend for SPA architecture Excellent debugging skills, going beyond "print debugging" for both Ruby More ❯

inclusive team, where everyone can grow and share their opinions. Tech & Wild Our Technology team builds and maintains solutions that power e-commerce, production, and fulfillment, using technologies like Ruby, Rails, Python, React, PostgreSQL, AWS, and GCP. We develop APIs for our web and mobile apps and are exploring new microservices and domain-driven services. Our Product Engineering … team is organized into cross-functional squads, each responsible for specific domains, supported by Platform and Data Engineering. You'll join the Range squad , focusing on internal systems for range representation, product allocation, and stock management, directly impacting customer experience and order fulfillment. Most team members are based in the UK, working flexibly, with quarterly in-person meetings for … collaboration and team bonding. Learn more about our tech stack and culture on our blog - Code & Wild . What you'll be doing As a mid-level engineer in our Range squad , you'll help develop and maintain internal tools for warehouse operations, from bouquet assembly to order fulfillment across multiple countries. Collaborate with product managers, engineers, and stakeholders More ❯

Angular Frontend Developer - 2 month contract - remote (UK based)- outside IR35 - circa £400pd** We're on the hunt for a skilled Frontend Developer to join one of our clients on contract basis. If you're a self-starter with strong Angular expertise and some exposure to Ruby on Rails, we want to hear from you … term contract, where you will be modifying the frontend of an existing ITSM platform. What We're Looking For: Proven expertise in Angular (preferably v12 or newer) Exposure to Ruby on Rails - you won't be writing full Rails apps, but familiarity is key Solid understanding of HTML, CSS (SCSS), and modern JavaScript (ES6+) Experience with … employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept our Data Protection Policy which can be found on our website. Please note that no terminology in this advert is intended to discriminate on the grounds of a person's gender, marital status, race, religion, colour, age More ❯

and company culture. What You Will Do Your day will start with a warm welcome online and get your tools to start! Your first 30 days will be focusing on getting to know our HackerOnies. You will join your new squad and be onboarded - get to learn the technology stack (Ruby on Rails + GraphQL + … . Within 60 days, you will have committed a bunch of code to our repositories and will start developing a knack for being a fast and effective software engineer on our codebase. Within 90 days, you will start getting ready to lead your first project. You will have branched out and talked to sales, marketing, and various other functions … into simple, but robust engineering (or non-engineering) solutions. Minimum Qualifications 5+ years of experience in full-stack software engineering, especially within a SAAS environment, preferably with experience in Ruby on Rails, ReactJS and TypeScript, generative AI, ElasticSearch/OpenSearch, GraphQL Practical experience with GenAI and running LLM models in production Proven experience leading and delivering cross More ❯

More Than Just A Job As a proud B-Corp we focus on using business as a force for good. We do this by balancing out people and planet with profit. For every Mindful Chef recipe box bought we donate the equivalent of a school meal to a child in a less developed country (over 20 million meals donated … by 2030 but there are so many other initiatives that we would love to tell you about! What we are looking for We're looking for Senior, product-focused Rails Engineers to help build our modern full-stack Rails web platform. Collaborating closely with our product and design teams, and the rest of the engineering team, you'll … bring features and products to life following our 6-week cycle Shape Up process. You are Fluent in Ruby, and modern Rails embracing Hotwire and Stimulus. A relentless problem-solver, determined to get things done whether working independently or as part of a team. Infused with a passion for engineering and solving interesting problems with the simplest solutions More ❯

I am currently working with a start-up that is leading in the sustainability sector and is currently looking for a Ruby Developer to join the team. They have had recent funding and are looking to grow their team, meaning there are excellent career opportunities. The company are currently a provider of employee benefits. They have tapped into some … high-profile SMEs and are looking at widening their profile and the benefit opportunities they can provide. They work in an agile environment with regular testing and work on a tech stack of Ruby on Rails, JavaScript (React), with PostgreSQL. They also work with Rspec for testing Heroku and AWS. There are lots of training and … learning opportunities as well as the scope to progress your career as a Ruby Developer. They are currently in the process of expanding the in-house Development Team as they transition away from a third party team, as a Ruby Developer you will be working on many different Greenfield projects as they expand their current products and More ❯

self-funded, profitable, and have been in business for 14 years . What's the opportunity? We're looking to hire our 12th full-time employee , a well-rounded Rails developer. In this role, you will learn a ton and be part of a small, global, and user-centered company. You'll have the opportunity to make a difference … in the lives of 1,000s of ethical hackers. Plus, as a small team, you will have a lot of choices about what to work on, and there are still a lot of untapped opportunities for you to grow as the company does. What we offer and what we are looking for: You'll be a trusted and key … member of our team where you'll be working on a large application with an interesting architecture. This is (some of) what you'll end up doing on a day-to-day basis: Build features that improve the experience for our users, and help them get the results they need. Design solutions and propose ideas. Make architecture decisions. More ❯

Title: Senior Software Engineer (TypeScript & Ruby) Rate: Up to £450 Per Day Outside IR35 (3 months) Remote! Are you an experienced Senior TypeScript Engineer looking for your next contract opportunity? if so iO Associates are exclusively working with mission-driven technology company that's transforming how people experience financial recovery. Our client is on a journey to change … client is looking for a Senior Software Engineer to join their team! The Opportunity: You'll join a product-focused team working across the full stack - primarily with TypeScript , Ruby , and AWS - to build and scale systems that underpin our international growth. From API design to infrastructure, you'll own meaningful projects and contribute to a platform that impacts … This is a high-impact individual contributor role with opportunities to lead technically, mentor others, and shape engineering best practices as we scale. Their Tech Stack: Backend: TypeScript (Node.js), Ruby on Rails Frontend: TypeScript, React, Hotwire (Turbo/Stimulus) Infrastructure: AWS (Lambda, Fargate, Aurora, CloudFormation), PostgreSQL, Redis DevOps & Tooling: Serverless Framework, GitHub Actions, Terraform, Sidekiq Our client More ❯

opportunities to contribute to workshop content and learner resources. Responsibilities and Expectations This is a varied role, and you will need to be flexible, proactive, and willing to take on a range of tasks to support the successful delivery of the Software Development Bootcamp. Use existing course material and Coding Black Females systems to support lesson objectives and prepare … System (LMS). Review the curriculum ahead of each session to familiarise yourself with the content and prepare to meet learners' needs. Provide regular updates to the Lead Instructor on learner progress, engagement, and any issues or concerns. Support delivery of live sessions, webinars, and workshops-either in groups or one-to-one with learners. Assist in observing and … evaluating the training programme by sharing insights and feedback on learner experience. Help assess the overall effectiveness of the bootcamp by contributing to feedback processes and suggesting areas for improvement. Areas of Knowledge We are looking for individuals who have working experience in or are comfortable supporting (or willing to learn) in the following areas: Programming Fundamentals (e.g., Python More ❯

Environment" (the web-based application through which approved researches access the Our Future Health dataset). As the Tech Lead you will play a key role in the collaboration on work with the DNAnexus team. You'll lead the development/integration of products and services built internally. About Us Our Future Health will be the UK's largest … skills You have led the architectural design of systems. Knowledge and experience of building cloud-hosted consumer web applications and backend services using open source technologies such as Node.js, Ruby on Rails, Python in a start-up or scale-up environment. Knowledge and experience of building backend systems for data movement, processing and storage and provision of … with the flexibility to take bank holidays when it suits you. Enhanced Parental Leave - Supporting you during life's biggest moments. Career Growth & Development - £500 per year to spend on Learnerbly, our learning platform, plus regular appraisals and development opportunities. Cycle to Work Scheme - Save 25-39% on a new bike and accessories through salary sacrifice. Home & Tech More ❯

and coach architects and developers to ensure that architecture and requirements best practices are followed. Establish and enforce quality standards for cloud software architectures. Drive high priority customer initiatives on Cloud/Datacenter in collaboration with customers and Persistent sales team. The role is a technical, customer facing role that is accountable for the end-to-end customer cloud … deployment experience. Own the Azure technical customer engagement including: developing the architectural design on specific implementation projects and/or Proofs of Concepts, and Cloud solution architecture components of customer facing contract bid responses. Assess Azure/Datacenter footprint readiness for deployment activities. Technical Skills: Deep understanding of computing technologies, business drivers, and emerging computing trends. Deep technical experience … in infrastructure design including private and public cloud, networking, virtualization, identity, security and storage. Understanding of how to build resilient multi-site architectures. Hands-on with tools & methods in capability, business transformation delivery, sizing & estimations. Experience with Windows, Linux and Unix platforms. Experience with configuration management and automation technologies such as PowerShell DSC, Chef, ARM Templates, and Puppet is More ❯

functional, Product Engineering squads, who each own their own business and architectural domain and are supported by our Platform, Architecture, Data and IT teams. Our platform uses technologies including Ruby on Rails and Python/React. It exposes APIs that are used by our multi-brand Angular web app and our native iOS and Android mobile apps. … On Android, we are migrating the project to use Clean Architecture with MVI and Jetpack Compose. Most of our team is based in the UK or The Netherlands and works in a flexible model, with a choice in how often they travel to the office. Our squads meet in person at least once per quarter to maintain connections, collaborate … on larger projects, and have fun together. You can read lots more about our technology stack and our culture over on our tech blog - Code Wild What you'll be doing: You'll play an active role in delivering the roadmap for the Apps squad and be a key part of our Engineering team. Collaborating with other engineers More ❯

businesses that are bootstrapped quickly with a lean team. You will be actively involved in designing components behind scalable applications, from frontend UI to backend infrastructure. Specifically, we focus on fiat wallet projects, providing better on/off ramps for multiple currencies across different countries. As a Full-stack Developer, you will be responsible for designing, developing, maintaining … with web front-end development, especially React/Redux. Knowledge of front-end frameworks and technologies such as React.js, Vue.js, Mobx, Redux. Experience with server-side programming languages like Ruby on Rails, Golang. Understanding of global payment systems is a plus. Candidates with less experience may be considered for junior roles. Empowered to think big and explore More ❯

trust and accountability. Employees, researchers, customers, and partners Win Together by fostering empowerment, inclusion, respect, and accountability. Software Engineer II Remote Location: London Position Summary As a Software Engineer on the Enterprise Support team, you will work with Product Managers and Designers on a variety of challenging projects and build features and products for our community and the … fellow HackerOnies through our well-organized and fun onboarding process called H.A.T.C.H. You will be setting up your development environment, getting a feel for our engineering processes, and embarking on a journey to fully understand the domain you will be working with. By day 30 you will have met most of your fellow Engineering HackerOnies, you will have paired … with other Software Engineers, you will have a strong feel for our codebases and products, and will be prepared to start hands-on coding. By day 60 you'll be involved in building a meaningful part of one of the projects and you will have become more connected with our team and various stakeholders. By day 90 you'll More ❯

Monday.com, an inclusive employer and a member of myGwork the largest global platform for the + business community. Please do not contact the recruiter directly. At monday.com, we're on a mission to change how teams work by creating flexible solutions that supercharge productivity. Our Work OS helps teams streamline workflows, automate tasks, and get real-time insights. We … this Group, you'll help drive the company's core metrics, Activation, Engagement, Monetization, and more, by spotting and building smart growth opportunities. You'll work end-to-end on features across client and server, using data, experimentation, and proven growth strategies to make real impact across key areas of our product. ???? Check out our Engineering Blog - Please note … teams, including product development and marketing, to align growth strategies with overall business objectives. Performance Tracking and Reporting - Develop and maintain dashboards to monitor key performance indicators (KPIs), report on growth initiatives' performance, and communicate findings to stakeholders. User Experience Enhancement - Identify areas for improvement in the user experience and implement strategies to increase user engagement and conversion rates. More ❯

This job is brought to you by Jobs/Redefined, the UK's leading over-50s age inclusive jobs board. Description At monday.com, we're on a mission to change how teams work by creating flexible solutions that supercharge productivity. Our Work OS helps teams streamline workflows, automate tasks, and get real-time insights. We are building and scaling … this Group, you'll help drive the company's core metrics, Activation, Engagement, Monetization, and more, by spotting and building smart growth opportunities. You'll work end-to-end on features across client and server, using data, experimentation, and proven growth strategies to make real impact across key areas of our product. Check out our Engineering Blog - Please note … teams, including product development and marketing, to align growth strategies with overall business objectives. Performance Tracking and Reporting - Develop and maintain dashboards to monitor key performance indicators (KPIs), report on growth initiatives' performance, and communicate findings to stakeholders. User Experience Enhancement - Identify areas for improvement in the user experience and implement strategies to increase user engagement and conversion rates. More ❯

The Role - Senior Software Engineer (Growth) At Ophelos, we use cutting-edge AI and a customer-first approach to get people debt-free and organisations paid back. We are on an accelerated journey to roll out our products to 17 European countries. Our Growth squad plays a critical role in this expansion. Building robust and scalable systems that empower … expansion journey. It's a small team of four, with ranging seniority so the majority of your time will be spent working as an individual contributor. Our tech stack: Ruby on Rails 7, Hotwire (Turbo, Stimulus), View Components, Sidekiq, PostgreSQL, Redis, Serverless, AWS (Fargate, Aurora, ElastiCache), GitHub In this role, you'll get to: Design, implement and … in building and maintaining public-facing APIs. Appreciation of clean architecture and design patterns and understanding of the benefits of test-driven code. Ownership and self-motivation to take on tasks with loose requirements and see them through to successful completion. Nice to haves: Experience working with large datasets and building tools for data ingestion and processing. You enjoy More ❯

Shoreditch office near Old Street) Salary: £60-90k dependent upon the value the successful candidate brings! Our Mission: Fixing Trust in Commerce For a decade, we've been on a mission to close the Trust Gap-commerce's most expensive problem. In a world where distance and digital interfaces separate buyers and sellers, we're building the definitive … grown from an idea into the dominant force for trust in e-commerce: Shopify's Review Solution : We've earned over 42k five-star reviews from merchants who rely on us daily Global Scale : More than 500k shops across 140+ countries use our platform Massive Reach : We process over 70 million orders monthly, generating 2 million+ verified buyer reviews … RESTful API design principles and microservices architecture Strong analytical and problem-solving abilities with attention to system performance Excellent communication skills with both technical and business stakeholders Preferred Experience Ruby on Rails proficiency (our primary backend framework) Intercom platform and API experience or similar customer communication platforms AI/ML technologies knowledge and practical implementation experience Jira More ❯

customer experience, dealing with other Cronofy team members across the business, and ensures that customers have positive experiences with Cronofy. This role will also work alongside the Engineering team on a range of product development projects that will, in the long term, aid the ability to support customers on technical product-related issues. This role reports to Rachael … high level of customer support, resolve issues and find practical solutions Engaging with Engineering/Development team to provide appropriate technical solutions, often through the full development lifecycle Working on development projects as part of the Product Engineering team Requirements: Experience with an API or SaaS based business supporting a product Technical customer support experience Development experience with API … s, NodeJS, Ruby on Rails, C(all), PHP or Go is preferred but not essential Sysadmin experience with MS Exchange and/or Office365 is preferred but not essential How you'll work Our stack Who we think you are You and your approach About you Your capabilities How we work We can support a predominantly remote More ❯

The Role - Senior Software Engineer (Growth) At Ophelos, we use cutting-edge AI and a customer-first approach to get people debt-free and organisations paid back. We are on an accelerated journey to roll out our products to 17 European countries. Our Growth squad plays a critical role in this expansion. Building robust and scalable systems that empower … our expansion journey. Its a small team of four, with ranging seniority so the majority of your time will be spent working as an individual contributor. Our tech stack: Ruby on Rails 7, Hotwire (Turbo, Stimulus), View Components, Sidekiq, PostgreSQL, Redis, Serverless, AWS (Fargate, Aurora, ElastiCache), GitHub In this role, youll get to: Design, implement and deliver … in building and maintaining public-facing APIs. Appreciation of clean architecture and design patterns and understanding of the benefits of test-driven code. Ownership and self-motivation to take on tasks with loose requirements and see them through to successful completion. Nice to haves: Experience working with large datasets and building tools for data ingestion and processing. You enjoy More ❯